312544532442 has 32 divisors (see below), whose sum is σ = 629591432832. Its totient is φ = 103432215744.

The previous prime is 312544532441. The next prime is 312544532453. The reversal of 312544532442 is 244235445213.

It is a self number, because there is not a number n which added to its sum of digits gives 312544532442.

It is not an unprimeable number, because it can be changed into a prime (312544532441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1005883 + ... + 1279409.

It is an arithmetic number, because the mean of its divisors is an integer number (19674732276).

Almost surely, 2^312544532442 is an apocalyptic number.

312544532442 is an abundant number, since it is smaller than the sum of its proper divisors (317046900390).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

312544532442 is a wasteful number, since it uses less digits than its factorization.

312544532442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 274902.

The product of its digits is 460800, while the sum is 39.

Adding to 312544532442 its reverse (244235445213), we get a palindrome (556779977655).

The spelling of 312544532442 in words is "three hundred twelve billion, five hundred forty-four million, five hundred thirty-two thousand, four hundred forty-two".